sia-js

nodejs lib for siacoin functions

Usage

Import Lib

var Sia = require('sia-js');

Key Derivation

Generate secure random seed

var randomData = sia.keyPair.generateRandomData()

From Seed

var keyPair = Sia.keyPair.generateFromSeed('seed string');

From Private Key

var keyPair = Sia.keyPair.deriveAddress('cbfaced5375c679a1181be27b7530a1c77dcf6a2b2c0c14ac9c62ce5d7fdf5e6e60400f316b823195c6f4f996cfa04827499b2d3d48e0bf8b711a32c653f59a0');

Example response:

{
  address: '91948070704e646adb8ce40655df31e9a0a157cffaabd3776a67c6ebedb00c6e5144bb726fda',
  publicKey: 'e60400f316b823195c6f4f996cfa04827499b2d3d48e0bf8b711a32c653f59a0',
  privateKey: 'cbfaced5375c679a1181be27b7530a1c77dcf6a2b2c0c14ac9c62ce5d7fdf5e6e60400f316b823195c6f4f996cfa04827499b2d3d48e0bf8b711a32c653f59a0'
}

Build Transaction (Siacoin transfer)

var transaction = Sia.transaction.encodeTransaction(inputs, fee, changeAddress, sendAmount, destinationAddress, privateKey, (transaction) => {
  // returns json object as an encoded transaction
  // send transaction using walrus endpoint (https://escher-walrus.libtechnologies.io/broadcast)
  // TODO Change domain to escher subdomain
})

Inputs

Name	Type	Example
inputs	Array	https://siastats.info:3500/navigator-api/unspent_outputs/changeAddress
fee	Number (Siacoin)	0.0001 (In Siacoins not hastings)
changeAddress	String	Siacoin Address
sendAmount	Number (Siacoin)	10 (In Siacoins not hastings)
destinationAddress	String	Siacoin Address
privateKey	String	Siacoin Private Key

Example response

{
  "siacoinInputs": [
    {
      "parentID": "b8c63a8f435bfff7bf8c1f6c7ece0066599fa4e08cb74ab5929e84b014e408c8",
      "unlockConditions": {
        "publicKeys": [ "ed25519:8408ad8d5e7f605995bdf9ab13e5c0d84fbe1fc610c141e0578c7d26d5cfee75" ],
        "signaturesRequired": 1
      }
    }
  ],
  "siacoinOutputs": [
    {
      "value": "10000000000000000000000000000",
      "unlockHash": "5ac6af95fe284b4bbb0110ef51d3c90f3e9ea37586352ec83bad569230bad7f37a452c0a2a2f"
    },
    {
      "value": "100000000000000000000000000000",
      "unlockHash": "df1b42c80b5f7a67331893fde0923a5071d6d7dff4c78baec547cf5ca4d314a1d78b6b1c8d42"
    }
  ],
  "minerFees": [ "13000000000000000000000000000" ],
  "transactionSignatures": [
    {
      "parentID": "b8c63a8f435bfff7bf8c1f6c7ece0066599fa4e08cb74ab5929e84b014e408c8",
      "publicKeyIndex": 0,
      "coveredFields": { "wholeTransaction": true },
      "signature": "rFtBFv9oeScpO3mhp6O2liMwBKYXn05SaOmzhhjQtIkOwAClaJTpLEKn3U26zYis2AG2tH2idWSJNZXNSVa8DQ=="
    }
  ]
}

TODO

• function to verify a valid sia address
• function to verify a valid sia private key
• function to verify a valid sia public key